During September 2025, Zete focused on improving type safety within the symfony/symfony repository, specifically targeting the getAttributes methods in ControllerEvent and ControllerArgumentsEvent. By refining the return types based on the className parameter, Zete addressed potential runtime type mismatches and enhanced static analysis for developers working with HttpKernel events. The work involved careful API design and the use of PHP type hinting to ensure that attribute retrieval is both robust and predictable. Although no new features were introduced, this targeted bug fix contributed to safer, more maintainable code and improved IDE support for the Symfony developer community.